Disease resistance refers to the ability of an organism to limit the negative impacts of a pathogen or disease. Organisms have various natural defenses that provide resistance, including:
Plants and animals can both have genetic disease resistance, meaning they inherit special genes from their parents that help them combat certain diseases. Breeders try to select for disease resistance traits when developing new varieties of important crops.
Disease resistance differs from disease tolerance - tolerance means the organism can limit the damage caused by a given amount of pathogen, rather than limiting the pathogen itself. Both resistance and tolerance are important defenses.
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